I posted in the forum a week or so again that someone got my PayPal information and took a bunch of money out of my checking account through it. I think the site was called RapidShare AG. When I talked to PayPal they offered to send me this security key to help protect my account. They are absolutely free to anyone who wants to request one. Its a little keychain that generates a different code every 30 secons and you have to enter the correct code to get into paypal.